Screw



FIG. 1 is a front elevational view of the screw showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof,

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 is a cross sectional view taken along the lines 8—8 in FIG. 5, showing the shape of the grooves in the screw head.

The portion of the article depicted in broken lines is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a screw, as shown and described. 